delete build dist

This commit is contained in:
yumoqing 2019-05-14 10:50:40 +08:00
parent 689cb7c016
commit e6f1175acc
16 changed files with 0 additions and 2123 deletions

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from .mysqlor import MySqlor
class AioMysqlor(MySqlor):
@classmethod
def isMe(self,name):
return name=='aiomysql'

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from .postgresqlor import PostgreSQLor
class AioPostgresqlor(PostgreSQLor):
@classmethod
def isMe(self,name):
return name=='aiopg'

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import asyncio
from queue import Queue
from functools import wraps
import codecs
from appPublic.myImport import myImport
from appPublic.dictObject import DictObject
from appPublic.Singleton import SingletonDecorator
from appPublic.myjson import loadf
from appPublic.jsonConfig import getConfig
from .sor import SQLor
from .mssqlor import MsSqlor
from .oracleor import Oracleor
from .sqlite3or import SQLite3or
from .mysqlor import MySqlor
from .aiomysqlor import AioMysqlor
from .aiopostgresqlor import AioPostgresqlor
def sqlorFactory(dbdesc):
driver = dbdesc.get('driver',dbdesc)
def findSubclass(name,klass):
for k in klass.__subclasses__():
if k.isMe(name):
return k
k1 = findSubclass(name,k)
if k1 is not None:
return k1
return None
k = findSubclass(driver,SQLor)
if k is None:
return SQLor(dbdesc=dbdesc)
return k(dbdesc=dbdesc)
def sqlorFromFile(dbdef_file,coding='utf8'):
dbdef = loadf(dbdef_file)
return sqlorFactory(dbdef)
class LifeConnect:
__conndict = {}
def __init__(self,connfunc,kw,use_max=1000,async_mode=False):
self.connfunc = connfunc
self.async_mode = async_mode
self.use_max = use_max
self.kw = kw
self.conn = None
def print(self):
print(self.use_max)
print(self.conn)
async def _mkconn(self):
if self.async_mode:
self.conn = await self.connfunc(**self.kw)
else:
self.conn = self.connfunc(**self.kw)
self.use_cnt = 0
self.__conndict[self.conn] = self
async def use(self):
if self.conn is None:
await self._mkconn()
conn = self.conn
if await self.testok():
return conn
del self.__conndict[conn]
await self._mkconn()
@classmethod
async def free(self,conn):
lc = self.__conndict[conn]
lc.use_cnt = lc.use_cnt + 1
if lc.use_cnt >= lc.use_max:
await lc.conn.close()
await lc._mkcomm()
return lc
async def testok(self):
if self.async_mode:
async with self.conn.cursor() as cur:
try:
await cur.execute('select 1 as cnt')
return True
except:
return False
else:
cur = self.conn.cursor()
try:
cur.execute('select 1 as cnt')
r = cur.fetchall()
return True
except:
return False
finally:
cur.close()
class ConnectionPool(object):
def __init__(self,dbdesc,loop):
self.dbdesc = dbdesc
self.async_mode = dbdesc.get('async_mode',False)
self.loop = loop
self.driver = myImport(self.dbdesc['driver'])
self.maxconn = dbdesc.get('maxconn',5)
self.maxuse = dbdesc.get('maxuse',1000)
self._pool = Queue(self.maxconn)
self._fillPool()
self.using = []
self.use_cnt = 0
self.max_use = 1000
def _fillPool(self):
for i in range(self.maxconn):
lc = self.connect()
i = i + 1
def connect(self):
lc = LifeConnect(self.driver.connect,self.dbdesc['kwargs'],
use_max=self.maxuse,async_mode=self.async_mode)
self._pool.put(lc)
return lc
def isEmpty(self):
return self._pool.empty()
def isFull(self):
return self._pool.full()
async def aquire(self):
lc = self._pool.get()
self.using.append(lc)
conn = await lc.use()
return conn
async def release(self,conn):
lc = await LifeConnect.free(conn)
self.using = [c for c in self.using if c != lc ]
self._pool.put(lc)
@SingletonDecorator
class DBPools:
def __init__(self,databases={},max_connect=10,loop=None):
if loop is None:
loop = asyncio.get_event_loop()
self.loop = loop
self._cpools = {}
self.databases = databases
def addDatabase(self,name,desc):
self.databases[name] = desc
async def getSqlor(self,name):
desc = self.databases.get(name)
sor = sqlorFactory(desc)
sor.name = name
a,conn,cur = await self._aquireConn(name)
sor.setCursor(a,conn,cur)
return sor
async def freeSqlor(self,sor):
await self._releaseConn(sor.name,sor.conn,sor.cur)
async def _aquireConn(self,dbname):
p = self._cpools.get(dbname)
if p == None:
p = ConnectionPool(self.databases.get(dbname),self.loop)
self._cpools[dbname] = p
conn = await p.aquire()
if self.isAsyncDriver(dbname):
cur = await conn.cursor()
else:
cur = conn.cursor()
return self.isAsyncDriver(dbname),conn,cur
def isAsyncDriver(self,dbname):
ret = self.databases[dbname].get('async_mode',False)
return ret
async def _releaseConn(self,dbname,conn,cur):
if self.isAsyncDriver(dbname):
await cur.close()
else:
try:
cur.fetchall()
except:
pass
cur.close()
p = self._cpools.get(dbname)
if p == None:
raise Exception('database (%s) not connected'%dbname)
await p.release(conn)
def inSqlor(self,func):
@wraps(func)
async def wrap_func(sor,dbname,*args,**kw):
sor = await self.getSqlor(dbname)
try:
ret = await func(sor,dbname,*args,**kw)
return ret
except Exception as e:
print('error',sor)
raise e
finally:
await self.freeSqlor(sor)
return wrap_func
def runSQL(self,func):
@wraps(func)
async def wrap_func(dbname,NS,callback,**kw):
sor = await self.getSqlor(dbname)
desc = func(dbname,NS,callback,**kw)
try:
ret = await sor.runSQL(desc,NS,callback,**kw)
except Exception as e:
print('error:',e)
raise e
finally:
await self.freeSqlor(sor)
return wrap_func
def runSQLPaging(self,func):
@wraps(func)
async def wrap_func(dbname,NS,**kw):
sor = await self.getSqlor(dbname)
desc = func(dbname,NS,**kw)
total = await sor.record_count(desc,NS)
recs = await sor.pagingdata(desc,NS)
data = {
"total":total,
"rows":recs
}
print(len(recs),'records return')
await self.freeSqlor(sor)
return data
return wrap_func
async def runSQLResultFields(self, dbname,NS,**kwargs):
sor = self.getSqlor(dbname)
desc = func(dbname,NS,**kw)
conn = await self._aquireConn(dbname)
async with conn.cursor() as cur:
sor.setCursor(conn,cur)
ret=await sor.sqlIterator(desc,NS)
ret = [ {'name':i[0],'type':i[1]} for i in cur.description ]
return ret
await self._releaseConn(dbname,conn)
async def getTables(self,dbname):
@self.inSqlor
async def _getTables(sor,dbname):
ret = await sor.tables()
return ret
return await _getTables(None,dbname)
async def getTableFields(self,dbname,tblname):
@self.inSqlor
async def _getTableFields(sor,dbname,tblname):
ret = await sor.fields(tblname)
return ret
return await _getTableFields(None,dbname,tblname)
async def getTablePrimaryKey(self,dbname,tblname):
@self.inSqlor
async def _getTablePrimaryKey(sor,dbname,tblname):
ret = await sor.primary(tblname)
return ret
return await _getTablePrimaryKey(None,dbname,tblname)
async def getTableForignKeys(self,dbname,tblname):
@self.inSqlor
async def _getTableForignKeys(sor,dbname,tblname):
ret = await sor.fkeys(tblname)
return ret
return await _getTableForignKeys(None,dbname,tblname)

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mysql_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
{%- if type=='str' -%}
VARCHAR({{len}})
{%- elif type=='char' -%}
CHAR({{len}})
{%- elif type=='long' or type=='int' or type=='short' -%}
int
{%- elif type=='long' -%}
bigint
{%- elif type=='float' or type=='double' or type=='ddouble' -%}
double({{len}},{{dec}})
{%- elif type=='date' -%}
date
{%- elif type=='time' -%}
time
{%- elif type=='datetime' -%}
datetime
{%- elif type=='timestamp' -%}
TIMESTAMP
{%- elif type=='text' -%}
longtext
{%- elif type=='bin' -%}
longblob
{%- else -%}
{{type}}
{%- endif %}
{%- endmacro %}
{% macro nullStr(nullable) %}
{%- if nullable=='no' -%}
NOT NULL
{%- endif -%}
{% endmacro %}
{% macro primary() %}
{% if len(','.join(summary[0].primary))>0 %}
,primary key({{','.join(summary[0].primary)}})
{% endif %}
{% endmacro %}
drop table {{summary[0].name}};
CREATE TABLE {{summary[0].name}}
(
{% for field in fields %}
{{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}} {%if field.title -%} comment '{{field.title}}'{%- endif %}{%- if not loop.last -%},{%- endif -%}
{% endfor %}
{{primary()}}
)
engine=innodb
default charset=utf8
{% if summary[0].title %}comment '{{summary[0].title}}'{% endif %}
;
{% for v in validation %}
{% if v.oper=='idx' %}
CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
{% endif %}
{%- endfor -%}
"""

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oracle_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
{%- if type=='str' -%}
VARCHAR2({{len}})
{%- elif type=='char' -%}
CHAR({{len}})
{%- elif type=='long' or type=='int' or type=='short' -%}
NUMBER
{%- elif type=='float' or type=='double' or type=='ddouble' -%}
NUMBER({{len}},{{dec}})
{%- elif type=='date' or type=='time' -%}
DATE
{%- elif type=='timestamp' -%}
TIMESTAMP
{%- elif type=='text' -%}
CLOB
{%- elif type=='bin' -%}
BLOB
{%- else -%}
{{type}}
{%- endif %}
{%- endmacro %}
{% macro nullStr(nullable) %}
{%- if nullable=='no' -%}
NOT NULL
{%- endif -%}
{% endmacro %}
{% macro primary() %}
{% if len(','.join(summary[0].primary))>0 %}
,primary key({{','.join(summary[0].primary)}})
{% endif %}
{% endmacro %}
drop table {{summary[0].name}};
CREATE TABLE {{summary[0].name}}
(
{% for field in fields %}
{{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}}{%- if not loop.last -%},{%- endif -%}
{% endfor %}
{{primary()}}
);
{% for v in validation %}
{% if v.oper=='idx' %}
CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
{% endif %}
{%- endfor -%}
COMMENT ON TABLE {{summary[0].name}} IS '{{summary[0].title}}';
{% for field in fields %}
COMMENT ON COLUMN {{summary[0].name}}.{{field.name}} is '{{field.title}}';
{% endfor %}
"""

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postgresql_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
{%- if type=='str' -%}
VARCHAR({{len}})
{%- elif type=='char' -%}
CHAR({{len}})
{%- elif type=='long' or type=='int' or type=='short' -%}
INTEGER
{%- elif type=='float' or type=='double' or type=='ddouble' -%}
NUMERIC({{len}},{{dec}})
{%- elif type=='date' -%}
DATE
{%- elif type=='time' -%}
TIME
{%- elif type=='timestamp' -%}
TIMESTAMP
{%- else -%}
{{type}}
{%- endif %}
{%- endmacro %}
{% macro nullStr(nullable) %}
{%- if nullable=='no' -%}
NOT NULL
{%- endif -%}
{% endmacro %}
{% macro primary() %}
primary key({{','.join(summary[0].primary)}})
{% endmacro %}
DROP TABLE IF EXISTS {{summary[0].name}};
CREATE TABLE {{summary[0].name}}
(
{% for field in fields %}
{{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}},
{% endfor %}
{{primary()}}
);
{% for v in validation %}
{% if v.oper=='idx' %}
CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
{% endif %}
{%- endfor -%}
COMMENT ON TABLE {{summary[0].name}} IS '{{summary[0].title.decode('utf8')}}';
{% for field in fields %}
COMMENT ON COLUMN {{summary[0].name}}.{{field.name}} is '{{field.title.decode('utf8')}}';
{% endfor %}
"""

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sqlserver_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
{%- if type=='str' -%}
NVARCHAR({{len}})
{%- elif type=='char' -%}
CHAR({{len}})
{%- elif type=='long' or type=='int' or type=='short' -%}
NUMERIC
{%- elif type=='float' or type=='double' or type=='ddouble' -%}
numeric({{len}},{{dec}})
{%- elif type=='date' or type=='time' -%}
DATE
{%- elif type=='timestamp' -%}
TIMESTAMP
{%- elif type=='text' -%}
NVARCHAR(MAX)
{%- elif type=='bin' -%}
IMAGE
{%- else -%}
{{type}}
{%- endif %}
{%- endmacro %}
{% macro nullStr(nullable) %}
{%- if nullable=='no' -%}
NOT NULL
{%- endif -%}
{% endmacro %}
{% macro primary() %}
{% if len(','.join(summary[0].primary))>0 %}
,primary key({{','.join(summary[0].primary)}})
{% endif %}
{% endmacro %}
drop table dbo.{{summary[0].name}};
CREATE TABLE dbo.{{summary[0].name}}
(
{% for field in fields %}
{{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}}{%- if not loop.last -%},{%- endif -%}
{% endfor %}
{{primary()}}
)
{% for v in validation %}
{% if v.oper=='idx' %}
CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
{% endif %}
{%- endfor -%}
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{{summary[0].title}}' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'{{summary[0].name}}'
{% for field in fields %}
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{{field.title}}' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'{{summary[0].name}}', @level2type=N'COLUMN',@level2name=N'{{field.name}}'
{% endfor %}
"""

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# -*- coding:utf8 -*-
from .sor import SQLor
from .ddl_template_sqlserver import sqlserver_ddl_tmpl
class MsSqlor(SQLor):
ddl_template = sqlserver_ddl_tmpl
db2modelTypeMapping = {
'bit':'short',
'tinyint':'short',
'date':'date',
'bigint':'long',
'smallint':'short',
'int':'long',
'decimal':'float',
'numeric':'float',
'smallmoney':'float',
'money':'float',
'real':'float',
'float':'float',
'datetime':'date',
'timestamp':'timestamp',
'uniqueidentifier':'timestamp',
'char':'char',
'varchar':'str',
'text':'text',
'nchar':'str',
'nvarchar':'str',
'ntext':'text',
'binary':'str',
'varbinary':'str',
'image':'file',
}
model2dbTypemapping = {
'date':'datetime',
'time':'date',
'timestamp':'timestamp',
'str':'nvarchar',
'char':'char',
'short':'int',
'long':'numeric',
'float':'numeric',
'text':'ntext',
'file':'image',
}
@classmethod
def isMe(self,name):
return name=='pymssql'
def grammar(self):
return {
'select':select_stmt,
}
def placeHolder(self,varname):
if varname=='__mainsql__' :
return ''
return '%s'
def dataConvert(self,dataList):
if type(dataList) == type({}):
d = [ i for i in dataList.values()]
else:
d = [ i['value'] for i in dataList]
return tuple(d)
def pagingSQLmodel(self):
return u"""select *
from (
select row_number() over(order by $[sort]$ $[order]$) as _row_id,page_s.*
from (%s) page_s
) A
where _row_id >= $[from_line]$ and _row_id < $[end_line]$"""
def tablesSQL(self):
sqlcmd = u"""select
lower(d.name) as name,
lower(cast(Isnull(f.VALUE,d.name) as nvarchar )) title
from sysobjects d
left join sys.extended_properties f on d.id = f.major_id and f.minor_id = 0
where d.xtype = 'U'"""
return sqlcmd
def fieldsSQL(self,tablename=None):
sqlcmd=u"""SELECT name = lower(a.name)
,type = b.name
,length = Columnproperty(a.id,a.name,'PRECISION')
,dec = Isnull(Columnproperty(a.id,a.name,'Scale'),null)
,nullable = CASE
WHEN a.isnullable = 1 THEN 'yes'
ELSE 'no'
END
,title = lower(cast(Isnull(g.[value],a.name) as nvarchar) )
,table_name = lower(d.name)
FROM syscolumns a
LEFT JOIN systypes b
ON a.xusertype = b.xusertype
INNER JOIN sysobjects d
ON (a.id = d.id)
AND (d.xtype = 'U')
AND (d.name <> 'dtproperties')
INNER JOIN sys.all_objects c
ON d.id=c.object_id
AND schema_name(schema_id)='dbo'
LEFT JOIN sys.extended_properties g
ON (a.id = g.major_id)
AND (a.colid = g.minor_id)
LEFT JOIN sys.extended_properties f
ON (d.id = f.major_id)
AND (f.minor_id = 0)"""
if tablename is not None:
sqlcmd = sqlcmd + """ where lower(d.name)='%s'
ORDER BY a.id,a.colorder""" % tablename.lower()
else:
sqlcmd = sqlcmd + """ ORDER BY a.id,a.colorder"""
return sqlcmd
def fkSQL(self,tablename=None):
sqlcmd = u"""select
MainCol.name AS field -- [主表列名]
,oSub.name AS fk_table -- [子表名称],
,SubCol.name AS fk_field -- [子表列名],
from
sys.foreign_keys fk
JOIN sys.all_objects oSub
ON (fk.parent_object_id = oSub.object_id)
JOIN sys.all_objects oMain
ON (fk.referenced_object_id = oMain.object_id)
JOIN sys.foreign_key_columns fkCols
ON (fk.object_id = fkCols.constraint_object_id)
JOIN sys.columns SubCol
ON (oSub.object_id = SubCol.object_id
AND fkCols.parent_column_id = SubCol.column_id)
JOIN sys.columns MainCol
ON (oMain.object_id = MainCol.object_id
AND fkCols.referenced_column_id = MainCol.column_id)"""
if tablename is not None:
sqlcmd = sqlcmd + """ where lower(oMain.name) = '%s'""" % tablename.lower()
return sqlcmd
def pkSQL(self,tablename=None):
sqlcmd = u"""select
lower(a.table_name) as table_name,
lower(b.column_name) as field_name
from information_schema.table_constraints a
inner join information_schema.constraint_column_usage b
on a.constraint_name = b.constraint_name
where a.constraint_type = 'PRIMARY KEY'"""
if tablename is not None:
sqlcmd = sqlcmd + """ and lower(a.table_name) = '%s'""" % tablename.lower()
return sqlcmd
def indexesSQL(self,tablename=None):
sqlcmd = """SELECT
index_name=lower(IDX.Name),
index_type=case when KC.type_desc is null then 'primary' WHEN IDX.is_unique=1 THEN 'unique' ELSE 'ununique' END,
table_name=lower(O.Name),
column_name=lower(C.Name)
FROM sys.indexes IDX
INNER JOIN sys.index_columns IDXC
ON IDX.[object_id]=IDXC.[object_id]
AND IDX.index_id=IDXC.index_id
LEFT JOIN sys.key_constraints KC
ON IDX.[object_id]=KC.[parent_object_id]
AND IDX.index_id=KC.unique_index_id
INNER JOIN sys.objects O
ON O.[object_id]=IDX.[object_id]
INNER JOIN sys.columns C
ON O.[object_id]=C.[object_id]
AND O.type='U'
AND O.is_ms_shipped=0
AND IDXC.Column_id=C.Column_id"""
if tablename is not None:
sqlcmd = sqlcmd + """ where lower(O.name)='%s'""" % tablename.lower()
return sqlcmd

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# -*- coding:utf8 -*-
from mysql import connector
from appPublic.argsConvert import ArgsConvert,ConditionConvert
from .sor import SQLor
from .ddl_template_mysql import mysql_ddl_tmpl
class MySqlor(SQLor):
ddl_template = mysql_ddl_tmpl
db2modelTypeMapping = {
'tinyint':'short',
'smallint':'short',
'mediumint':'long',
'int':'long',
'bigint':'long',
'decimal':'float',
'double':'float',
'float':'float',
'char':'char',
'varchar':'str',
'tinyblob':'text',
'tinytext':'text',
'mediumblob':'text',
'mediumtext':'text',
'blob':'text',
'text':'text',
'mediumblob':'text',
'mediumtext':'text',
'longblob':'bin',
'longtext':'text',
'barbinary':'text',
'binary':'text',
'date':'date',
'time':'time',
'datetime':'datetime',
'timestamp':'datestamp',
'year':'short',
}
model2dbTypemapping = {
'date':'date',
'time':'date',
'timestamp':'timestamp',
'str':'varchar',
'char':'char',
'short':'int',
'long':'bigint',
'float':'double',
'text':'longtext',
'bin':'longblob',
'file':'longblob',
}
@classmethod
def isMe(self,name):
return name=='mysql.connector'
def grammar(self):
return {
'select':select_stmt,
}
def _opendb(self):
self.conn = connector.connect(**self.dbdesc['kwargs'])
def placeHolder(self,varname):
if varname=='__mainsql__' :
return ''
return '%s'
def dataConvert(self,dataList):
if type(dataList) == type({}):
d = [ i for i in dataList.values()]
else:
d = [ i['value'] for i in dataList]
return tuple(d)
def pagingSQL(self,sql,paging,NS):
"""
default it not support paging
"""
page = int(NS.get(paging['pagename'],1))
rows = int(NS.get(paging['rowsname'],10))
sort = NS.get(paging.get('sortname','sort'),None)
order = NS.get(paging.get('ordername','asc'),'asc')
if not sort:
return sql
if page < 1:
page = 1
from_line = (page - 1) * rows
end_line = page * rows + 1
psql = self.pagingSQLmodel()
ns={
'from_line':from_line,
'end_line':end_line,
'rows':rows,
'sort':sort,
'order':order,
}
ac = ArgsConvert('$[',']$')
psql = ac.convert(psql,ns)
retSQL=psql % sql
return retSQL
def pagingSQLmodel(self):
return u"""select * from (%s) A order by $[sort]$ $[order]$
limit $[from_line]$,$[rows]$"""
def tablesSQL(self):
sqlcmd = """SELECT lower(TABLE_NAME) as name, lower(TABLE_COMMENT) as title FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = '%s'""" % self.dbdesc.get('dbname','unknown')
return sqlcmd
def fieldsSQL(self,tablename=None):
sqlcmd="""
select
lower(column_name) as name,
data_type as type,
case when character_maximum_length is null then NUMERIC_PRECISION
else character_maximum_length end
as length,
NUMERIC_SCALE as dec1,
lower(is_nullable) as nullable,
column_comment as title,
lower(table_name) as table_name
from information_schema.columns where lower(TABLE_SCHEMA) = '%s' """ % self.dbdesc.get('dbname','unknown').lower()
if tablename is not None:
sqlcmd = sqlcmd + """and lower(table_name)='%s';""" % tablename.lower()
return sqlcmd
def fkSQL(self,tablename=None):
sqlcmd = """SELECT C.TABLE_SCHEMA 拥有者,
C.REFERENCED_TABLE_NAME 父表名称 ,
C.REFERENCED_COLUMN_NAME 父表字段 ,
C.TABLE_NAME 子表名称,
C.COLUMN_NAME 子表字段,
C.CONSTRAINT_NAME 约束名,
T.TABLE_COMMENT 表注释,
R.UPDATE_RULE 约束更新规则,
R.DELETE_RULE 约束删除规则
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE C
JOIN INFORMATION_SCHEMA. TABLES T
ON T.TABLE_NAME = C.TABLE_NAME
JOIN INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS R
ON R.TABLE_NAME = C.TABLE_NAME
AND R.CONSTRAINT_NAME = C.CONSTRAINT_NAME
AND R.REFERENCED_TABLE_NAME = C.REFERENCED_TABLE_NAME
WHERE C.REFERENCED_TABLE_NAME IS NOT NULL ;
and C.TABLE_SCHEMA = '%s'
""" % self.dbdesc.get('dbname','unknown').lower()
if tablename is not None:
sqlcmd = sqlcmd + " and C.REFERENCED_TABLE_NAME = '%s'" % tablename.lower()
return sqlcmd
def pkSQL(self,tablename=None):
sqlcmd = """SELECT
lower(c.table_name) as table_name,
lower(c.COLUMN_NAME) as field_name
FROM
INFORMATION_SCHEMA.TABLE_CONSTRAINTS AS t,
INFORMATION_SCHEMA.KEY_COLUMN_USAGE AS c
WHERE
t.CONSTRAINT_TYPE = 'PRIMARY KEY'
AND t.TABLE_SCHEMA = '%s'
AND t.TABLE_NAME = c.TABLE_NAME
""" % self.dbdesc.get('dbname','unknown').lower()
if tablename is not None:
sqlcmd = sqlcmd + " AND c.TABLE_NAME = '%s'" % tablename.lower()
return sqlcmd
def indexesSQL(self,tablename=None):
sqlcmd = """SELECT DISTINCT
lower(index_name) as index_name,
lower(index_type) as index_type,
lower(table_name) as table_name,
lower(column_name) as column_name
FROM
information_schema.statistics
WHERE
table_schema = '%s'""" % self.dbdesc.get('dbname','unknown')
if tablename is not None:
sqlcmd = sqlcmd + """ AND table_name = '%s'""" % tablename.lower()
return sqlcmd

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@ -1,131 +0,0 @@
from .sor import SQLor
from .ddl_template_oracle import oracle_ddl_tmpl
class Oracleor(SQLor):
ddl_template = oracle_ddl_tmpl
db2modelTypeMapping = {
'char':'char',
'nchar':'str',
'varchar':'str',
'varchar2':'str',
'nvarchar2':'str',
'number':'long',
'integer':'long',
'binary_float':'float',
'binary_double':'float',
'float':'float',
'timestamp':'timestamp',
'timestamp with time zone':'timestamp',
'timestamp with local time zone':'timestamp',
'interval year to moth':'date',
'interval day to second':'timestamp',
'clob':'text',
'nclob':'text',
'blob':'file',
'bfile':'file',
'date':'date',
}
model2dbTypemapping = {
'date':'date',
'time':'date',
'timestamp':'date',
'str':'varchar2',
'char':'char',
'short':'number',
'long':'number',
'float':'number',
'text':'nclob',
'file':'blob',
}
@classmethod
def isMe(self,name):
return name=='cx_Oracle'
def grammar(self):
return {
'select':select_stmt,
}
def placeHolder(self,varname):
if varname=='__mainsql__' :
return ''
return ':%s' % varname
def dataConvert(self,dataList):
if type(dataList) == type({}):
return dataList
d = {}
[ d.update({i['name']:i['value']}) for i in dataList ]
return d
def pagingSQLmodel(self):
return u"""select *
from (
select page_s.*,rownum row_id
from (%s) page_s
order by $[sort]$ $[order]$
)
where row_id >=$[from_line]$ and row_id < $[end_line]$"""
def tablesSQL(self):
sqlcmd = """select
lower(table_name) as name,
lower(decode(comments,null,table_name,comments)) as title
from USER_TAB_COMMENTS where table_type = 'TABLE'"""
return sqlcmd
def fieldsSQL(self,tablename=None):
sqlcmd="""select lower(utc.COLUMN_NAME) name
,utc.DATA_TYPE type
,utc.DATA_LENGTH length
,utc.data_scale dec
,case when utc.nullable = 'Y' then 'yes' else 'no' end nullable
,lower(nvl(ucc.comments,utc.COLUMN_NAME)) title
,lower(utc.table_name) as table_name
from user_tab_cols utc left join USER_COL_COMMENTS ucc on utc.table_name = ucc.table_name and utc.COLUMN_NAME = ucc.COLUMN_NAME"""
if tablename is not None:
sqlcmd = sqlcmd + """ where lower(utc.table_name) = '%s'""" % tablename.lower()
return sqlcmd
def fkSQL(self,tablename=None):
tablename = tablename.lower()
sqlcmd = """select
distinct(ucc.column_name) as field,rela.table_name as fk_table,rela.column_name as fk_field
from
user_constraints uc,user_cons_columns ucc,
(
select t2.table_name,t2.column_name,t1.r_constraint_name
from user_constraints t1,user_cons_columns t2
where t1.r_constraint_name=t2.constraint_name
) rela
where
uc.constraint_name=ucc.constraint_name
and uc.r_constraint_name=rela.r_constraint_name"""
if tablename is not None:
sqlcmd = sqlcmd + """ and lower(uc.table_name)='%s'""" % tablename.lower()
return sqlcmd
def pkSQL(self,tablename=None):
sqlcmd = """
select
lower(col.table_name) table_name,
lower(col.column_name) as field_name
from
user_constraints con,user_cons_columns col
where
con.constraint_name=col.constraint_name and con.constraint_type='P'"""
if tablename is not None:
sqlcmd = sqlcmd + """ and lower(col.table_name)='%s'""" % tablename.lower()
return sqlcmd
def indexesSQL(self,tablename=None):
sqlcmd = """select
lower(a.index_name) index_name,
lower(a.UNIQUENESS) index_type,
lower(a.table_name) table_name,
lower(b.column_name) column_name
from user_indexes a, user_ind_columns b
where a.index_name = b.index_name"""
if tablename is not None:
sqlcmd += """ and lower(a.table_name) = lower('%s')""" % tablename.lower()
return sqlcmd

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@ -1,199 +0,0 @@
from .sor import SQLor
from .ddl_template_postgresql import postgresql_ddl_tmpl
class PostgreSQLor(SQLor):
ddl_template = postgresql_ddl_tmpl
db2modelTypeMapping = {
'smallint':'short',
'integer':'long',
'bigint':'llong',
'decimal':'float',
'numeric':'float',
'real':'float',
'double':'float',
'serial':'long',
'bigserial':'llong',
'char':'char',
'character':'char',
'varchar':'str',
'character varying':'str',
'text':'text',
'timestamp':'timestamp',
'date':'date',
'time':'time',
'boolean':'char',
'bytea':'file'
}
model2dbTypemapping = {
'date':'date',
'time':'date',
'timestamp':'timestamp',
'str':'varchar',
'char':'char',
'short':'smallint',
'long':'integer',
'float':'numeric',
'text':'text',
'file':'bytea',
}
@classmethod
def isMe(self,name):
return name=='psycopg2'
def grammar(self):
return {
'select':select_stmt,
}
def placeHolder(self,varname):
if varname=='__mainsql__' :
return ''
return ':%s' % varname
def dataConvert(self,dataList):
if type(dataList) == type({}):
return dataList
d = {}
[ d.update({i['name']:i['value']}) for i in dataList ]
return d
def pagingSQLmodel(self):
return u"""select *
from (
select page_s.*,rownum row_id
from (%s) page_s
order by $[sort]$ $[order]$
)
where row_id >=$[from_line]$ and row_id < $[end_line]$"""
def tablesSQL(self):
"""
列出表名
SELECT tablename FROM pg_tables;
WHERE tablename NOT LIKE 'pg%'
AND tablename NOT LIKE 'sql_%'
ORDER BY tablename;
"""
sqlcmd = """select
lower(table_name) as name,
lower(decode(comments,null,table_name,comments)) as title
from USER_TAB_COMMENTS where table_type = 'TABLE'"""
return sqlcmd
def fieldsSQL(self,tablename=None):
"""SELECT col_description(a.attrelid,a.attnum) as comment,pg_type.typname as typename,a.attname as name, a.attnotnull as notnull
FROM pg_class as c,pg_attribute as a inner join pg_type on pg_type.oid = a.atttypid
where c.relname = 'tablename' and a.attrelid = c.oid and a.attnum>0
"""
sqlcmd="""select lower(utc.COLUMN_NAME) name
,utc.DATA_TYPE type
,utc.DATA_LENGTH length
,utc.data_scale dec
,case when utc.nullable = 'Y' then 'yes' else 'no' end nullable
,lower(nvl(ucc.comments,utc.COLUMN_NAME)) title
,lower(utc.table_name) as table_name
from user_tab_cols utc left join USER_COL_COMMENTS ucc on utc.table_name = ucc.table_name and utc.COLUMN_NAME = ucc.COLUMN_NAME"""
if tablename is not None:
sqlcmd = sqlcmd + """ where lower(utc.table_name) = '%s'""" % tablename.lower()
return sqlcmd
def fkSQL(self,tablename=None):
tablename = tablename.lower()
sqlcmd = """select
distinct(ucc.column_name) as field,rela.table_name as fk_table,rela.column_name as fk_field
from
user_constraints uc,user_cons_columns ucc,
(
select t2.table_name,t2.column_name,t1.r_constraint_name
from user_constraints t1,user_cons_columns t2
where t1.r_constraint_name=t2.constraint_name
) rela
where
uc.constraint_name=ucc.constraint_name
and uc.r_constraint_name=rela.r_constraint_name"""
if tablename is not None:
sqlcmd = sqlcmd + """ and lower(uc.table_name)='%s'""" % tablename.lower()
return sqlcmd
def pkSQL(self,tablename=None):
"""
select pg_attribute.attname as colname,pg_type.typname as typename,pg_constraint.conname as pk_name from
pg_constraint inner join pg_class
on pg_constraint.conrelid = pg_class.oid
inner join pg_attribute on pg_attribute.attrelid = pg_class.oid
and pg_attribute.attnum = pg_constraint.conkey[1]
inner join pg_type on pg_type.oid = pg_attribute.atttypid
where pg_class.relname = 'tablename'
and pg_constraint.contype='p'
"""
sqlcmd = """
select
lower(col.table_name) table_name,
lower(col.column_name) as field_name
from
user_constraints con,user_cons_columns col
where
con.constraint_name=col.constraint_name and con.constraint_type='P'"""
if tablename is not None:
sqlcmd = sqlcmd + """ and lower(col.table_name)='%s'""" % tablename.lower()
return sqlcmd
def indexesSQL(self,tablename=None):
"""
SELECT
A.SCHEMANAME,
A.TABLENAME,
A.INDEXNAME,
A.TABLESPACE,
A.INDEXDEF,
B.AMNAME,
C.INDEXRELID,
C.INDNATTS,
C.INDISUNIQUE,
C.INDISPRIMARY,
C.INDISCLUSTERED,
D.DESCRIPTION
FROM
PG_AM B
LEFT JOIN PG_CLASS F ON B.OID = F.RELAM
LEFT JOIN PG_STAT_ALL_INDEXES E ON F.OID = E.INDEXRELID
LEFT JOIN PG_INDEX C ON E.INDEXRELID = C.INDEXRELID
LEFT OUTER JOIN PG_DESCRIPTION D ON C.INDEXRELID = D.OBJOID,
PG_INDEXES A
WHERE
A.SCHEMANAME = E.SCHEMANAME AND A.TABLENAME = E.RELNAME AND A.INDEXNAME = E.INDEXRELNAME
AND E.SCHEMANAME = 'public' AND E.RELNAME = 'table_name'
"""
sqlcmd = """select
lower(a.index_name) index_name,
lower(a.UNIQUENESS) index_type,
lower(a.table_name) table_name,
lower(b.column_name) column_name
from user_indexes a, user_ind_columns b
where a.index_name = b.index_name"""
if tablename is not None:
sqlcmd += """ and lower(a.table_name) = lower('%s')""" % tablename.lower()
return sqlcmd

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@ -1,454 +0,0 @@
import os
os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.UTF8'
import sys
import codecs
import re
import json
from appPublic.myImport import myImport
from appPublic.dictObject import DictObject,dictObjectFactory
from appPublic.unicoding import uDict
from patterncoding.myTemplateEngine import MyTemplateEngine
from appPublic.argsConvert import ArgsConvert,ConditionConvert
class SQLorException(Exception,object):
def __int__(self,**kvs):
supper(SQLException,self).__init__(self,**kvs)
self.dic = {
'response':'error',
'errtype':'SQLor',
'errmsg':supper(SQLException,self).message,
}
def __str__(self):
return 'errtype:%s,errmsg=%s' % (self.dic['errtype'],self.dic['errmsg'])
def setValues(params,ns):
r = ns.get(params,os.getenv(params))
return r
def findNamedParameters(sql):
"""
return a list of named parameters
"""
re1 = '\$\{[_a-zA-Z_][a-zA-Z_0-9]*\}'
params1 = re.findall(re1,sql)
return params1
def uniParams(params1):
ret = []
for i in params1:
if i not in ret:
ret.append(i)
return ret
def readsql(fn):
f = codecs.open(fn,'r','utf-8')
b = f.read()
f.close()
return b
class SQLor(object):
def __init__(self,dbdesc=None,sqltp = '$[',sqlts = ']$',sqlvp = '${',sqlvs = '}$'):
self.conn = None
self.cur = None
self.async_mode = False
self.sqltp = sqltp
self.sqlts = sqlts
self.sqlvp = sqlvp
self.sqlvs = sqlvs
self.dbdesc = dbdesc
self.writer = None
self.convfuncs = {}
self.cc = ConditionConvert()
def setCursor(self,async_mode,conn,cur):
self.async_mode = async_mode
self.conn = conn
self.cur = cur
def getConn(self):
return self.conn
def setConvertFunction(self,typ,func):
self.convfuncs.update({typ:func})
def convert(self,typ,value):
if self.convfuncs.get(typ,None) is not None:
return self.convfuncs[typ](value)
return value
@classmethod
def isMe(self,name):
return name=='sqlor'
def pagingSQLmodel(self):
return u""
def placeHolder(self,varname):
if varname=='__mainsql__' :
return ''
return '?'
def dataConvert(self,dataList):
return [ i.get('value',None) for i in dataList]
def dataList(self,k,v):
a = []
a.append({'name':k,'value':v})
return a
def cursor(self):
return self.cur
def recordCnt(self,sql):
ret = u"""select count(*) rcnt from (%s) rowcount_table""" % sql
return ret
def pagingSQL(self,sql,paging,NS):
"""
default it not support paging
"""
page = int(NS.get(paging['pagename'],1))
rows = int(NS.get(paging['rowsname'],10))
sort = NS.get(paging.get('sortname','sort'),None)
order = NS.get(paging.get('ordername','asc'),'asc')
if not sort:
return sql
if page < 1:
page = 1
from_line = (page - 1) * rows + 1
end_line = page * rows + 1
psql = self.pagingSQLmodel()
ns={
'from_line':from_line,
'end_line':end_line,
'rows':rows,
'sort':sort,
'order':order,
}
ac = ArgsConvert('$[',']$')
psql = ac.convert(psql,ns)
retSQL=psql % sql
return retSQL
def filterSQL(self,sql,filters,NS):
ac = ArgsConvert('$[',']$')
fbs = []
for f in filters:
vars = ac.findAllVariables(f)
if len(vars) > 0:
ignoreIt = False
for v in vars:
if not NS.get(v,False):
ignoreIt = True
if not ignoreIt:
f = ac.convert(f,NS)
else:
f = '1=1'
fbs.append(f)
fb = ' '.join(fbs)
retsql = u"""select * from (%s) filter_table where %s""" % (sql,fb)
return retsql
async def runVarSQL(self,cursor,sql,NS):
"""
using a opened cursor to run a SQL statment with variable, the variable is setup in NS namespace
return a cursor with data
"""
markedSQL,datas = self.maskingSQL(sql,NS)
datas = self.dataConvert(datas)
try:
markedSQL = markedSQL.encode('utf8')
if self.async_mode:
await cursor.execute(markedSQL,datas)
else:
cursor.execute(markedSQL,datas)
except Exception as e:
print( "markedSQL=",markedSQL,datas,e)
raise e
return
def maskingSQL(self,org_sql,NS):
"""
replace all ${X}$ format variable exception named by '__mainsql__' in sql with '%s',
and return the marked sql sentent and variable list
sql is a sql statment with variable formated in '${X}$
the '__mainsql__' variable use to identify the main sql will outout data.
NS is the name space the variable looking for, it is a variable dictionary
return (MarkedSQL,list_of_variable)
"""
sqltextAC = ArgsConvert(self.sqltp,self.sqlts)
sqlargsAC = ArgsConvert(self.sqlvp,self.sqlvs)
sql1 = sqltextAC.convert(org_sql,NS)
cc = ConditionConvert()
sql1 = cc.convert(sql1,NS)
vars = sqlargsAC.findAllVariables(sql1)
phnamespace = {}
[phnamespace.update({v:self.placeHolder(v)}) for v in vars]
m_sql = sqlargsAC.convert(sql1,phnamespace)
newdata = []
for v in vars:
if v != '__mainsql__':
value = sqlargsAC.getVarValue(v,NS,None)
newdata += self.dataList(v,value)
return (m_sql,newdata)
async def execute(self,sql,value,callback,**kwargs):
cur = self.cursor()
await self.runVarSQL(cur,sql,value)
if callback is not None:
fields = [ i[0].lower() for i in cur.description ]
if self.async_mode:
rec = await cur.fetchone()
else:
rec = cur.fetchone()
while rec is not None:
dic = {}
for i in range(len(fields)):
dic.update({fields[i]:rec[i]})
#dic = uDict(dic,coding='utf8')
callback(dic,**kwargs)
if self.async_mode:
rec = await cur.fetchone()
else:
rec = cur.fetchone()
async def executemany(self,sql,values):
cur = self.cursor()
markedSQL,datas = self.maskingSQL(sql,{})
datas = [ self.dataConvert(d) for d in values ]
if async_mode:
await cur.executemany(markedSQL,datas)
else:
cur.executemany(markedSQL,datas)
def pivotSQL(self,tablename,rowFields,columnFields,valueFields):
def maxValue(columnFields,valueFields,cfvalues):
sql = ''
for f in valueFields:
i = 0
for field in columnFields:
for v in cfvalues[field]:
sql += """
,sum(%s_%d) %s_%d""" % (f,i,f,i)
i+=1
return sql
def casewhen(columnFields,valueFields,cfvalues):
sql = ''
for f in valueFields:
i = 0
for field in columnFields:
for v in cfvalues[field]:
if v is None:
sql += """,case when %s is null then %s
else 0 end as %s_%d -- %s
""" % (field,f,f,i,v)
else:
sql += """,case when trim(%s) = trim('%s') then %s
else 0 end as %s_%d -- %s
""" % (field,v,f,f,i,v)
i += 1
return sql
cfvalues={}
for field in columnFields:
sqlstring = 'select distinct %s from %s' % (field,tablename)
v = []
self.execute(sqlstring,{},lambda x: v.append(x))
cfvalues[field] = [ i[field] for i in v ]
sql ="""
select """ + ','.join(rowFields)
sql += maxValue(columnFields,valueFields,cfvalues)
sql += """ from
(select """ + ','.join(rowFields)
sql += casewhen(columnFields,valueFields,cfvalues)
sql += """
from %s)
group by %s""" % (tablename,','.join(rowFields))
return sql
async def pivot(self,desc,tablename,rowFields,columnFields,valueFields):
sql = self.pivotSQL(tablename,rowFields,columnFields,valueFields)
desc['sql_string'] = sql
ret = []
return await self.execute(sql,{},lambda x:ret.append(x))
def isSelectSql(self,sql):
i = 0
while sql[i] in "\r\n \t":
i = i + 1
return sql.lower().startswith('select ')
def getSQLfromDesc(self,desc):
sql = ''
if 'sql_file' in desc.keys():
sql = readsql(desc['sql_file'])
else:
sql = desc['sql_string']
return sql
async def record_count(self,desc,NS):
cnt_desc = {}
cnt_desc.update(desc)
sql = self.getSQLfromDesc(desc)
if desc.get('sql_file',False):
del cnt_desc['sql_file']
cnt_desc['sql_string'] = self.recordCnt(sql)
class Cnt:
def __init__(self):
self.recs = []
def handler(self,rec):
self.recs.append(rec)
c = Cnt()
await self.sqlIterator(cnt_desc,NS,c.handler)
print(c.recs[0])
t = c.recs[0]['rcnt']
return t
async def pagingdata(self,desc,NS):
paging_desc = {}
paging_desc.update(desc)
paging_desc.update(
{
"paging":{
"rowsname":"rows",
"pagename":"page",
"sortname":"sort",
"ordername":"order"
}
})
if desc.get('sortfield',False):
NS['sort'] = desc.get('sortfield')
sql = self.getSQLfromDesc(desc)
if desc.get('sql_file',False):
del cnt_desc['sql_file']
paging_desc['sql_string'] = self.pagingSQL(sql,
paging_desc.get('paging'),NS)
class Cnt:
def __init__(self):
self.recs = []
def handler(self,rec):
self.recs.append(rec)
c = Cnt()
await self.sqlIterator(paging_desc,NS,c.handler)
return c.recs
async def runSQL(self,desc,NS,callback,**kw):
class RecordHandler:
def __init__(self,ns,name):
self.ns = ns
self.name = name
self.ns[name] = []
def handler(self,rec):
obj = DictObject(rec)
self.ns[self.name].append(obj)
cur = self.cursor()
sql = self.getSQLfromDesc(desc)
if self.isSelectSql(sql):
if callback is None:
klass = desc.get('dataname','dummy')
if klass is not None:
rh = RecordHandler(NS,klass)
callback = rh.handler
else:
callback = None
await self.execute(sql,NS,callback)
async def sqlExecute(self,desc,NS):
await self.execute(sql,NS,None)
async def tables(self):
sqlstring = self.tablesSQL()
ret = []
await self.execute(sqlstring,{},lambda x:ret.append(x))
return ret
def indexesSQL(self,tablename):
"""
record of {
index_name,
index_type,
table_name,
column_name
}
"""
return None
async def indexes(self,tablename=None):
sqlstring = self.indexesSQL(tablename.lower())
if sqlstring is None:
return []
recs = []
await self.execute(sqlstring,{},lambda x:recs.append(x))
return recs
async def fields(self,tablename=None):
sqlstring = self.fieldsSQL(tablename)
recs = []
await self.execute(sqlstring,{},lambda x:recs.append(x))
ret = []
for r in recs:
r.update({'type':self.db2modelTypeMapping.get(r['type'].lower(),'unknown')})
r.update({'name':r['name'].lower()})
ret.append(r)
return ret
async def primary(self,tablename):
sqlstring = self.pkSQL(tablename)
recs = []
await self.execute(sqlstring,{},lambda x:recs.append(x))
return recs
async def fkeys(self,tablename):
sqlstring = self.fkSQL(tablename)
recs = []
await self.execute(sqlstring,{},lambda x:recs.append(x))
return recs
async def createTable(self,tabledesc):
te = MyTemplateEngine([],'utf8','utf8')
desc = {
"sql_string":te.renders(self.ddl_template,tabledesc)
}
return await self.sqlExecute(desc,{})
async def getTableDesc(self,tablename):
desc = {}
summary = [ i for i in await self.tables() if tablename.lower() == i.name ]
primary = [i.field_name for i in await self.primary(tablename) ]
summary['primary'] = primary
desc['summary'] = summary
desc['fields'] = await self.fields(tablename=tablename)
desc['validation'] = []
idx = {}
async for idxrec in self.indexes(tablename=tablename):
if idxrec.index_name != idx.get('name',None):
if idx != {}:
desc['validation'].append(idx)
idx = {
'fields':[]
}
else:
idx['fields'] = []
idx['name'] = idxrec.index_name
idx['oper'] = 'idx'
idx['fields'].append(idxrec.field_name)
if idx != {}:
desc['validation'].append(idx)
return desc

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@ -1,100 +0,0 @@
import re
from .sor import SQLor
class SQLite3or(SQLor):
db2modelTypeMapping = {
'char':'char',
'nchar':'str',
'text':'text',
'ntext':'text',
'varchar':'str',
'nvarchar':'str',
'blob':'file',
'integer':'long',
'double':'float',
'date':'date',
'time':'time',
'timestamp':'timestamp',
'number':'long',
}
model2dbTypemapping = {
'date':'date',
'time':'time',
'timestamp':'timestamp',
'str':'nvarchar',
'char':'char',
'short':'int',
'long':'integer',
'float':'double',
'text':'ntext',
'file':'blob',
}
@classmethod
def isMe(self,name):
return name=='sqlite3'
def placeHolder(self,varname):
if varname=='__mainsql__' :
return ''
return '?'
def dataConvert(self,dataList):
if type(dataList) == type({}):
d = [ i for i in dataList.values()]
else:
d = [ i['value'] for i in dataList]
return tuple(d)
def pagingSQLmodel(self):
sql = u"""select * from (%s) order by $[sort]$ $[order]$ limit $[from_line]$,$[end_line]$"""
return sql
def tablesSQL(self):
sqlcmd = u"""select name, tbl_name as title from sqlite_master where upper(type) = 'TABLE'"""
return sqlcmd
def fieldsSQL(self,tablename):
sqlcmd="""PRAGMA table_info('%s')""" % tablename.lower()
return sqlcmd
def fields(self,tablename):
m = u'(\w+)\(((\d+)(,(\d+)){0,1})\){0,1}'
k = re.compile(m)
def typesplit(typ):
d = k.search(typ)
if d is None:
return typ,0,0
return d.group(1),int(d.group(3) if d.group(3) is not None else 0 ),int(d.group(5) if d.group(5) is not None else 0)
sqlstring = self.fieldsSQL(tablename)
recs = []
self.execute(sqlstring,callback=lambda x:recs.append(x))
for r in recs:
t,l,d = typesplit(r['type'])
r['type'] = t
r['length'] = int(l)
r['dec'] = int(d)
r['title'] = r['name']
ret = []
for r in recs:
r.update({'type':self.db2modelTypeMapping[r['type'].lower()]})
r.update({'name':r['name'].lower()})
ret.append(r)
return ret
def fkSQL(self,tablename):
sqlcmd = ""
return sqlcmd
def fkeys(self,tablename):
return []
def primary(self,tablename):
recs = self.fields(tablename)
ret = [ {'field':r['name']} for r in recs if r['pk'] == 1 ]
return ret
def pkSQL(self,tablename):
sqlcmd = ""
return sqlcmd

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@ -1,393 +0,0 @@
import os
os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.UTF8'
import sys
import codecs
import re
import json
from appPublic.myImport import myImport
from appPublic.dictObject import DictObject,dictObjectFactory
from appPublic.unicoding import uDict
from patterncoding.myTemplateEngine import MyTemplateEngine
from appPublic.argsConvert import ArgsConvert,ConditionConvert
class SQLorException(Exception,object):
def __int__(self,**kvs):
supper(SQLException,self).__init__(self,**kvs)
self.dic = {
'response':'error',
'errtype':'SQLor',
'errmsg':supper(SQLException,self).message,
}
def __str__(self):
return 'errtype:%s,errmsg=%s' % (self.dic['errtype'],self.dic['errmsg'])
def setValues(params,ns):
r = ns.get(params,os.getenv(params))
return r
def findNamedParameters(sql):
"""
return a list of named parameters
"""
re1 = '\$\{[_a-zA-Z_][a-zA-Z_0-9]*\}'
params1 = re.findall(re1,sql)
return params1
def uniParams(params1):
ret = []
for i in params1:
if i not in ret:
ret.append(i)
return ret
def readsql(fn):
f = codecs.open(fn,'r','utf-8')
b = f.read()
f.close()
return b
class SQLor(object):
def __init__(self,dbdesc=None,sqltp = '$[',sqlts = ']$',sqlvp = '${',sqlvs = '}$'):
self.conn = None
self.cur = None
self.sqltp = sqltp
self.sqlts = sqlts
self.sqlvp = sqlvp
self.sqlvs = sqlvs
self.dbdesc = dbdesc
self.writer = None
self.convfuncs = {}
self.cc = ConditionConvert()
def getConn(self):
return self.conn
def setConvertFunction(self,typ,func):
self.convfuncs.update({typ:func})
def convert(self,typ,value):
if self.convfuncs.get(typ,None) is not None:
return self.convfuncs[typ](value)
return value
@classmethod
def isMe(self,name):
return name=='sqlor'
def pagingSQLmodel(self):
return u""
def placeHolder(self,varname):
if varname=='__mainsql__' :
return ''
return '?'
def dataConvert(self,dataList):
return [ i.get('value',None) for i in dataList]
def dataList(self,k,v):
a = []
a.append({'name':k,'value':v})
return a
def cursor(self):
return self.cur
def recordCnt(self,sql):
ret = u"""select count(*) rcnt from (%s) rowcount_table""" % sql
return ret
def pagingSQL(self,sql,paging,NS):
"""
default it not support paging
"""
page = int(NS.get(paging['pagename'],1))
rows = int(NS.get(paging['rowsname'],10))
sort = NS.get(paging.get('sortname','sort'),None)
order = NS.get(paging.get('ordername','asc'),'asc')
if not sort:
return sql
if page < 1:
page = 1
from_line = (page - 1) * rows + 1
end_line = page * rows + 1
psql = self.pagingSQLmodel()
ns={
'from_line':from_line,
'end_line':end_line,
'rows':rows,
'sort':sort,
'order':order,
}
ac = ArgsConvert('$[',']$')
psql = ac.convert(psql,ns)
retSQL=psql % sql
return retSQL
def filterSQL(self,sql,filters,NS):
ac = ArgsConvert('$[',']$')
fbs = []
for f in filters:
vars = ac.findAllVariables(f)
if len(vars) > 0:
ignoreIt = False
for v in vars:
if not NS.get(v,False):
ignoreIt = True
if not ignoreIt:
f = ac.convert(f,NS)
else:
f = '1=1'
fbs.append(f)
fb = ' '.join(fbs)
retsql = u"""select * from (%s) filter_table where %s""" % (sql,fb)
return retsql
async def runVarSQL(self,cursor,sql,NS):
"""
using a opened cursor to run a SQL statment with variable, the variable is setup in NS namespace
return a cursor with data
"""
markedSQL,datas = self.maskingSQL(sql,NS)
datas = self.dataConvert(datas)
try:
markedSQL = markedSQL.encode('utf8')
await cursor.execute(markedSQL,datas)
except Exception as e:
print( "markedSQL=",markedSQL,datas,e)
raise e
return
def maskingSQL(self,org_sql,NS):
"""
replace all ${X}$ format variable exception named by '__mainsql__' in sql with '%s',
and return the marked sql sentent and variable list
sql is a sql statment with variable formated in '${X}$
the '__mainsql__' variable use to identify the main sql will outout data.
NS is the name space the variable looking for, it is a variable dictionary
return (MarkedSQL,list_of_variable)
"""
sqltextAC = ArgsConvert(self.sqltp,self.sqlts)
sqlargsAC = ArgsConvert(self.sqlvp,self.sqlvs)
sql1 = sqltextAC.convert(org_sql,NS)
cc = ConditionConvert()
sql1 = cc.convert(sql1,NS)
vars = sqlargsAC.findAllVariables(sql1)
phnamespace = {}
[phnamespace.update({v:self.placeHolder(v)}) for v in vars]
m_sql = sqlargsAC.convert(sql1,phnamespace)
newdata = []
for v in vars:
if v != '__mainsql__':
value = sqlargsAC.getVarValue(v,NS,None)
newdata += self.dataList(v,value)
return (m_sql,newdata)
async def execute(self,sql,value,callback,**kwargs):
cur = self.cursor()
await self.runVarSQL(cur,sql,value)
if callback is not None:
fields = [ i[0].lower() for i in cur.description ]
rec = await cur.fetchone()
while rec is not None:
dic = {}
for i in range(len(fields)):
dic.update({fields[i]:rec[i]})
dic = uDict(dic,coding='utf8')
callback(dic,**kwargs)
rec = await cur.fetchone()
self.close_cursor()
async def isOK(self):
try:
await self.execute('select 1 as cnt',{});
return True
except:
return False
async def executemany(self,sql,values):
cur = self.cursor()
markedSQL,datas = self.maskingSQL(sql,{})
datas = [ self.dataConvert(d) for d in values ]
await cur.executemany(markedSQL,datas)
self.close_cursor()
def pivotSQL(self,tablename,rowFields,columnFields,valueFields):
def maxValue(columnFields,valueFields,cfvalues):
sql = ''
for f in valueFields:
i = 0
for field in columnFields:
for v in cfvalues[field]:
sql += """
,sum(%s_%d) %s_%d""" % (f,i,f,i)
i+=1
return sql
def casewhen(columnFields,valueFields,cfvalues):
sql = ''
for f in valueFields:
i = 0
for field in columnFields:
for v in cfvalues[field]:
if v is None:
sql += """,case when %s is null then %s
else 0 end as %s_%d -- %s
""" % (field,f,f,i,v)
else:
sql += """,case when trim(%s) = trim('%s') then %s
else 0 end as %s_%d -- %s
""" % (field,v,f,f,i,v)
i += 1
return sql
cfvalues={}
for field in columnFields:
sqlstring = 'select distinct %s from %s' % (field,tablename)
v = []
self.execute(sqlstring,{},lambda x: v.append(x))
cfvalues[field] = [ i[field] for i in v ]
sql ="""
select """ + ','.join(rowFields)
sql += maxValue(columnFields,valueFields,cfvalues)
sql += """ from
(select """ + ','.join(rowFields)
sql += casewhen(columnFields,valueFields,cfvalues)
sql += """
from %s)
group by %s""" % (tablename,','.join(rowFields))
return sql
async def pivot(self,desc,tablename,rowFields,columnFields,valueFields):
sql = self.pivotSQL(tablename,rowFields,columnFields,valueFields)
desc['sql_string'] = sql
ret = []
return await self.execute(sql,{},lambda x:ret.append(x))
def isSeelectSQL(self,sql):
i = 0
while sql[i] in "\r\n \t":
i = i + 1
return sql.lower().startswith('select ')
async def sqlIterator(self,desc,NS,callback,**kw):
class RecordHandler:
def __init__(self,ns,klass):
self.ns = ns
self.klass = klass
self.recs = []
def handler(self,rec):
obj = self.klass(rec)
self.recs.append(obj)
def finish(self):
self.ns[name] = self.recs
cur = self.cursor()
sql = ''
if 'sql_file' in desc.keys():
sql = readsql(desc['sql_file'])
else:
sql = desc['sql_string']
if isSelectSql(sql):
if callback is None:
klass = desc.get('classname','DictObject')
if klass is not None:
rh = RecordHandler(NS,klass)
callback = rh.handler
else:
callback = None
await self.execute(sql,NS,callback)
async def sqlExecute(self,desc,NS):
await self.execute(sql,NS,None)
async def tables(self):
sqlstring = self.tablesSQL()
ret = []
await self.execute(sqlstring,{},lambda x:ret.append(x))
return ret
def indexesSQL(self,tablename):
"""
record of {
index_name,
index_type,
table_name,
column_name
}
"""
return None
async def indexes(self,tablename=None):
sqlstring = self.indexesSQL(tablename.lower())
if sqlstring is None:
return []
recs = []
await self.execute(sqlstring,{},lambda x:recs.append(x))
return recs
async def fields(self,tablename=None):
sqlstring = self.fieldsSQL(tablename)
recs = []
await self.execute(sqlstring,{},lambda x:recs.append(x))
ret = []
for r in recs:
r.update({'type':self.db2modelTypeMapping.get(r['type'].lower(),'unknown')})
r.update({'name':r['name'].lower()})
ret.append(r)
return ret
async def primary(self,tablename):
sqlstring = self.pkSQL(tablename)
recs = []
await self.execute(sqlstring,{},lambda x:recs.append(x))
return recs
async def fkeys(self,tablename):
sqlstring = self.fkSQL(tablename)
recs = []
await self.execute(sqlstring,{},lambda x:recs.append(x))
return recs
async def createTable(self,tabledesc):
te = MyTemplateEngine([],'utf8','utf8')
desc = {
"sql_string":te.renders(self.ddl_template,tabledesc)
}
return await self.sqlExecute(desc,{})
async def getTableDesc(self,tablename):
desc = {}
summary = [ i for i in await self.tables() if tablename.lower() == i.name ]
primary = [i.field_name for i in await self.primary(tablename) ]
summary['primary'] = primary
desc['summary'] = summary
desc['fields'] = await self.fields(tablename=tablename)
desc['validation'] = []
idx = {}
async for idxrec in self.indexes(tablename=tablename):
if idxrec.index_name != idx.get('name',None):
if idx != {}:
desc['validation'].append(idx)
idx = {
'fields':[]
}
else:
idx['fields'] = []
idx['name'] = idxrec.index_name
idx['oper'] = 'idx'
idx['fields'].append(idxrec.field_name)
if idx != {}:
desc['validation'].append(idx)
return desc

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